21616887 Hose | Genuine Volvo Penta Part

🔧 Product Description

A factory-moulded hose used in the raw-water cooling circuit of Volvo Penta V8 marine petrol engines.

🚤 Compatibility

Typically suits:

• Volvo Penta V8-380-CE-A
• Volvo Penta V8-380-C-B
• Volvo Penta V8-380-CE-B
• Volvo Penta V8-380-C-A

• Engine Family: V
• HP Range: 380 HP

⚙️ Key Features

• Factory-moulded hose for the raw-water cooling circuit
• Published weight of 0.007 kg is too low to identify a hose by and looks like a catalogue error, so order by part number
• Listed for 4 applications on V-series petrol engines

🔌 Function

Carries raw seawater through the engine's cooling circuit, keeping the run in a fixed moulded shape between its spigots so the bore is not kinked and flow to the pump, heat exchanger or discharge is maintained.

⚠️ Common Signs of Failure

• Bilge water with a salty tang traced back to a hose joint
• Reduced water at the exhaust outlet and rising temperature
• Soft, bulging sections in the hose wall, or a flattened run
• Salt and scale packed into the hose bore on strip-down
• Perished rubber breaking away where the hose is clamped

🛠️ Service Notes

• Renew the clamps with the hose and check the spigots for pitting or scale first - a corroded spigot will not seal against a new hose.
• Check the seawater pump impeller and the rest of the raw-water run at the same time - debris shed by a failing hose ends up in the pump or the heat exchanger.

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21614836 - Expansion tank
• 21630488 - Seawater-system adapter tee
• 21614855 - Cooling-system bracket

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging